I like the width of the rack.
I have a Joe Weider rack at home (my 2nd rack) and I don't like it. I bought it online through Wal-Mart's online shopping crap. I got it because it was like 100 bucks or so. I got the rack and the instructions tell me not to place more than 210lbs on the rack! RIGHT!!! I'll have you know I exceeded that by a lot.
Anyways. When I do squats I do a few types, oly stlye and front squats with a narrow footing and I do power lifting style with a super wide stance. Well the damn rack I have is 40" in width with 2.5" posts on each end giving me 35" of space to work with. My PL stance is in the low 40". Obviously I can't do them "in" my squat rack.
I looked at the dimentions of the squat rack or power rack you have listed and I did my best converting the cm to inches and I figured this much out. The width is about 46 inches, maybe 47". Subtract the 5" for the posts and you have a little over 40" of "stance space" to work with. Good!
Not everyone uses a super wide stance on their squats but I'm just saying if you are this will help you avoid what happened to me.
What I recommend is shelling out a decent amount of money for a squat rack that is of high quality (this one that you posted seems like it is). I'm sure the safety instructions also allow you to pack on more than 210lbs on the rack also.
Just my input